A flexible fibreoptic cable that is designed to transport cold light from a light source to an instrument or other equipment, e.g., an endoscope or a headlight. The fibreoptic bundle is protected within a sheath and can be made of either glass or plastic fibres. Each end of the cable is encased in a metal connector that fits into the respective instruments/equipment and also protects the end of the fibreoptic bundle. This is a reusable device.